CN101865170A - Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method - Google Patents
Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method Download PDFInfo
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- CN101865170A CN101865170A CN 201010207455 CN201010207455A CN101865170A CN 101865170 A CN101865170 A CN 101865170A CN 201010207455 CN201010207455 CN 201010207455 CN 201010207455 A CN201010207455 A CN 201010207455A CN 101865170 A CN101865170 A CN 101865170A
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Abstract
The invention relates to a follow-up rotary valve-type reversing valve, a follow-up reversing mechanism and a follow-up reserving method which belong to the field of aircraft front wheel turning mechanism operation actuator control valves. The valve comprises a rotary valve core (2), a pressure resistant shell (4), a flap (8), a sub-cavity button (10) and the like to form a main body structure; and the rotary valve core (2) and the pressure resistant shell (4) are respectively connected with a front wheel turning mechanism operation actuator and a front undercarriage pillar strut. In the valve, the rotation of the operation actuator directly drives the rotary valve core (2) to rotate, an oil circuit reversing function of a preset corner position can be realized without any external driving and control feedback circuit, and an oil circuit which communicates the head cavity and the tail cavity of the operation actuator is kept to rotate with the actuator. The reversing valve has stable mechanical movement, has compact structure, can effectively reduce the weight of a valve control system, and improve the reliability of the valve control system.
Description
Technical field
The present invention relates to a kind of follow-up rotary valve-type selector valve and servo-actuated changement and servo-actuated commutation method, belong to the aircraft nose wheel turning mechanism and handle pressurized strut control valve field.
Technical background
The rotary valve selector valve has obtained using widely at aspects such as oil, Chemical Manufacture as common a kind of in the hydraulic control valve.This valve have action accurately, advantage such as automaticity is high, working stability is reliable, drive and Control and Feedback loop etc. but generally need set up, increased its complex structure degree, to some mechanical structures with specific (special) requirements can't satisfy in requisition for.
Development along with aeronautical technology, large aircraft is when flight performance improves constantly, also to its ground controlling demands for higher performance, handle Nose Wheel Steering as one of important component part of aircraft floor mobility, also more and more be subjected to the attention that various countries' aviation manufactures and designs department.
The large aircraft nose wheel steering mechanism adopts double cropping movable barrel type structure more both at home and abroad at present, and double cropping movable barrel type nose wheel steering mechanism is handled the pressurized strut synergy by two, provides turning moment to finish the Nose Wheel Steering process jointly.Handle the process of Nose Wheel Steering in two pressurized struts, need be under the constant situation of the total oil circuit of maintenance system, the oil-feed oil circuit in a side pressurized strut two chambeies is constant, and the oil-feed oil circuit in opposite side pressurized strut two chambeies carries out the oil circuit commutation when pressurized strut countershaft moment is zero.In whole Nose Wheel Steering process, require two pressurized strut cooperation, need the hydraulic pressure valve control system to provide reliably, commutate accurately and control.Selector valve plays an important role on aspect performances such as raising nose wheel steering mechanism reliability as the core valve of control pressurized strut commutation.
Summary of the invention
Purpose of the present invention: it is low that traditional rotary valve selector valve exists automatic degree, need set up to drive and the Control and Feedback loop, makes shortcomings such as its complex structure, the oil outlet fixed-site of valve.The present invention is by structurally to the redesign of rotary spool, make valve can directly obtain driving force and directly obtain control signal by mechanical motion, simplify valve control system, improve its safety reliability, and make the valve oil outlet can satisfy the servo-actuated requirement of mechanism.
A kind of follow-up rotary valve-type selector valve is characterized in that: comprise rotary spool, pressure hull, flap from front to back successively; Wherein pressure hull inside is cavity, the rotary spool rear end is goed deep into pressure hull and is fixedlyed connected with flap by bolt, contact by the sealing of second seal ring between rotary spool and the pressure hull front end, seal by the 3rd seal ring between flap and the pressure hull rear end and contact; Form toroidal cavity between rotary spool and the pressure hull; Be fixed in first fen chamber key on the rotary spool, second fen chamber key is divided into the first semi-circular cavity and the second semi-circular cavity with the toroidal cavity between rotary spool and the pressure hull, first fen chamber key, second fen chamber key seal with pressure hull by first Stamping Steel Ribbon, second Stamping Steel Ribbon respectively and contact; The above-mentioned first semi-circular cavity communicates with first oilhole, and the second semi-circular cavity communicates with second oilhole; Two semi-circular cavitys also respectively with pressure hull on first advance/spill port, second advances/spill port communicates.
A kind of servo-actuated changement that utilizes above-mentioned follow-up rotary valve-type selector valve is characterized in that: also comprise the manipulation pressurized strut of being made up of cylinder body, cylinder cap, piston; The rotary spool front end of follow-up rotary valve-type selector valve and cylinder cap is connected and by bearings on the pillar bracket of nose-gear, and the spin axis of rotary spool and pressurized strut axis normal; Pressure hull is fixed on the pillar bracket of nose-gear; First oilhole on the rotary spool communicates with the pressurized strut head cavity, and pressurized strut tail chamber communicates by oil pipe with second oilhole.
A kind of servo-actuated commutation method that utilizes above-mentioned servo-actuated changement, it is characterized in that: the high pressure oil of hydraulic system by first on the pressure hull advance/spill port enters the first semi-circular cavity of follow-up rotary valve-type selector valve, enter the pressurized strut head cavity by first oilhole on the rotary spool again, promoting piston moves to pressurized strut tail chamber, the fluid in compressing pressurized strut tail chamber enters the second semi-circular cavity of follow-up rotary valve-type selector valve by oil pipe from second oilhole, fluid by second on the pressure hull advance/spill port gets back to hydraulic system; The driven rotary spool rotates in pressure hull in the pressurized strut rotation process, when turning over several angle the first semi-circular cavity advance with second/spill port communicates, the second semi-circular cavity advances with first/spill port communicates; The high pressure oil of hydraulic system by first on the pressure hull advance/spill port enters the second semi-circular cavity of follow-up rotary valve-type selector valve, enter pressurized strut tail chamber by second oilhole on the rotary spool again, promoting piston moves to the pressurized strut head cavity, first semi-annular chambers that compressing pressurized strut head cavity fluid enters the follow-up rotary valve-type selector valve from first oilhole, fluid by second on the pressure hull advance/spill port gets back to hydraulic system; Because the qualification of pressurized strut rotation angle makes that rotary spool rotation angle in pressure hull is limited, the position that requires first fen chamber key and second fen chamber key are set according to commutation reaches in required angle commutation purpose.
The present invention redesigns rotational valve core according to demand on the basis of traditional rotary valve selector valve structure, the rotating band movable valve plug of handling pressurized strut by the aircraft nose wheel turning mechanism rotates, and direct driving is provided; And be the separated by spaces between rotary spool and the pressure hull two chambers by minute chamber key, rotation with rotary spool, regulate the position relation of dividing between chamber key and the pressure hull sidewall oil inlet hole, the automatic control that when being implemented in the design angle position oil circuit is commutated; Simultaneously, by the fuel-displaced oil circuit design of rotary spool inside, make the present invention can satisfy oil outlet and carry out angle servo-actuated variation with handling pressurized strut, this valve plays the desired oil circuit lag function of controlled system when playing the selector valve function.
Beneficial effect of the present invention: 1, adopt newly-designed rotary spool, can directly from controlled mechanism, obtain driving force and control signal, replace electromagnetic control system, simplified valve control system, improved safety reliability by mechanical structure; 2, adopt the fuel-displaced oil circuit of design in rotary spool, can satisfy the fuel-displaced oil circuit of selector valve and carry out the requirement of servo-actuated, increase the function of selector valve, further simplify valve control system, avoid the oil pipe fatigue problem with controlled mechanism; 3, follow-up rotary valve-type selector valve commutation position can be regulated with the change to the size of minute chamber key position and branch chamber key, satisfies the needs that controlled mechanism changes within the specific limits, has improved the Applicable scope of selector valve;
Description of drawings
Accompanying drawing 1 follow-up rotary valve-type selector valve plan view and corresponding sectional drawing.Wherein Fig. 1-1 is a follow-up rotary valve-type selector valve plan view, and Fig. 1-2 is the A-A sectional view among Fig. 1-1, and Fig. 1-3 is the B-B sectional view among Fig. 1-1.
Accompanying drawing 2 follow-up rotary valve-type selector valve front views and corresponding sectional drawing.Wherein Fig. 2-1 is a follow-up rotary valve-type selector valve front view, and Fig. 2-2 is the C-C sectional view among Fig. 2-1.
Accompanying drawing 3 follow-up rotary valve-type selector valves are installed sectional drawing.
Number in the figure title: 1, first seal ring, 2, rotary spool, 3, second seal ring, 4, pressure hull, 5, sealing gasket, 6, bolt, 7, the 3rd seal ring, 8, flap, 9, first Stamping Steel Ribbon, 10, first fen chamber key, 11, second fen chamber key, 12, second Stamping Steel Ribbon, 13, first advances/spill port 14, second advances/spill port 15, first oilhole, 16, second oilhole, 17, the first semi-circular cavity, 18, the second semi-circular cavity, 19, the shore supports frame, 20, the follow-up rotary valve-type selector valve, 21, the cylinder cap oilhole, 22, cylinder cap, 23, oil pipe, 24, cylinder body, 25, the pressurized strut head cavity, 26, piston, 27, pressurized strut tail chamber.
Embodiment
Follow-up rotary valve-type selector valve mechanism and mounting arrangements are shown in accompanying drawing 1,2,3.In this brief description working principle of the present invention.
The high pressure oil of hydraulic system by first on the pressure hull 4 advance/spill port 13 enters the first semi-circular cavity 17 of follow-up rotary valve-type selector valve, enter pressurized strut head cavity 25 by first oilhole 15 on the rotary spool 2 again, promote piston to 27 motions of pressurized strut tail chamber, the fluid in compressing pressurized strut tail chamber 27 enters the second semi-circular cavity 18 of follow-up rotary valve-type selector valve by oil pipe 23 from second oilhole 16, fluid by second on the pressure hull 4 advance/spill port 14 gets back to hydraulic system.
Driven rotary spool 2 rotates in pressure hull 4 in the pressurized strut rotation process, when turning over several angle the first semi-circular cavity 17 advance with second/spill port 14 communicates, the second semi-circular cavity 18 advances with first/spill port 13 communicates.
The high pressure oil of hydraulic system by first on the pressure hull 4 advance/spill port 13 enters the second semi-circular cavity 18 of follow-up rotary valve-type selector valve, enter pressurized strut tail chamber 27 by second oilhole 16 on the rotary spool 2 again, promote piston to 25 motions of pressurized strut head cavity, first semi-annular chambers 17 that compressing pressurized strut head cavity 25 fluid enter the follow-up rotary valve-type selector valve from first oilhole 15, fluid by second on the pressure hull 4 advance/spill port 14 gets back to hydraulic system.
Because the qualification of pressurized strut rotation angle makes that rotary spool 2 rotation angle in pressure hull 4 is limited, the position that requires first fen chamber key 10 and second fen chamber key 11 are set according to commutation reaches in required angle commutation purpose.
Claims (3)
1. follow-up rotary valve-type selector valve is characterized in that:
Comprise rotary spool (2), pressure hull (4), flap (8) from front to back successively;
Wherein pressure hull (4) inside is cavity, rotary spool (2) rear end is goed deep into pressure hull (4) and is fixedlyed connected with flap (8) by bolt (6), contact by second seal ring (3) sealing between rotary spool (2) and pressure hull (4) front end, seal by the 3rd seal ring (7) between flap (8) and pressure hull (4) rear end and contact; Form toroidal cavity between rotary spool (2) and the pressure hull (4);
Be fixed in first fen chamber key (10) on the rotary spool (2), second minute the chamber key (11) toroidal cavity between rotary spool (2) and the pressure hull (4) is divided into the first semi-circular cavity (17) and the second semi-circular cavity (18), first fen chamber key (10), second minute the chamber key (11) seal with pressure hull (4) by first Stamping Steel Ribbon (9), second Stamping Steel Ribbon (12) respectively and contact;
The above-mentioned first semi-circular cavity (17) communicates with first oilhole (15), and the second semi-circular cavity (18) communicates with second oilhole (16); Two semi-circular cavitys also respectively with pressure hull (4) on first advance/spill port (13), second advances/spill port (14) communicates.
2. utilize the servo-actuated changement of the described follow-up rotary valve-type selector valve of claim 1, it is characterized in that:
Also comprise the manipulation pressurized strut of forming by cylinder body (24), cylinder cap (22), piston (26);
The rotary spool of follow-up rotary valve-type selector valve (2) front end and cylinder cap (22) be connected and by bearings on the pillar bracket (19) of nose-gear, and the spin axis of rotary spool (2) and pressurized strut axis normal; Pressure hull (4) is fixed on the pillar bracket (19) of nose-gear; First oilhole (15) on the rotary spool (2) communicates with pressurized strut head cavity (25), and pressurized strut tail chamber (27) communicates by oil pipe (23) with second oilhole (16).
3. utilize the servo-actuated commutation method of the described servo-actuated changement of claim 2, it is characterized in that:
The high pressure oil of hydraulic system by first on the pressure hull (4) advance/spill port (13) enters the first semi-circular cavity (17) of follow-up rotary valve-type selector valve, enter pressurized strut head cavity (25) by first oilhole (15) on the rotary spool (2) again, promoting piston moves to pressurized strut tail chamber (27), the fluid in compressing pressurized strut tail chamber (27) enters the second semi-circular cavity (18) of follow-up rotary valve-type selector valve by oil pipe (23) from second oilhole (16), fluid by second on the pressure hull (4) advance/spill port (14) gets back to hydraulic system;
Driven rotary spool (2) rotates in pressure hull (4) in the pressurized strut rotation process, when turning over several angle the first semi-circular cavity (17) advance with second/spill port (14) communicates, the second semi-circular cavity (18) advances with first/spill port (13) communicates;
The high pressure oil of hydraulic system by first on the pressure hull (4) advance/spill port (13) enters the second semi-circular cavity (18) of follow-up rotary valve-type selector valve, enter pressurized strut tail chamber (27) by second oilhole (16) on the rotary spool (2) again, promoting piston moves to pressurized strut head cavity (25), first semi-annular chambers (17) that compressing pressurized strut head cavity (25) fluid enters the follow-up rotary valve-type selector valve from first oilhole (15), fluid by second on the pressure hull (4) advance/spill port (14) gets back to hydraulic system;
Because the qualification of pressurized strut rotation angle makes that rotary spool (2) rotation angle pressure hull (4) in is limited, according to commutation require to be provided with first fen chamber key (10) and second minute the chamber key (11) the position reach in the required angle purpose that commutates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207455 CN101865170B (en) | 2010-06-23 | 2010-06-23 | Follow-up reversing mechanism and follow-up reserving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207455 CN101865170B (en) | 2010-06-23 | 2010-06-23 | Follow-up reversing mechanism and follow-up reserving method |
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| Publication Number | Publication Date |
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| CN101865170A true CN101865170A (en) | 2010-10-20 |
| CN101865170B CN101865170B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010207455 Active CN101865170B (en) | 2010-06-23 | 2010-06-23 | Follow-up reversing mechanism and follow-up reserving method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671328A (en) * | 2013-12-21 | 2014-03-26 | 浙江大学 | Automatic reversing rotary valve |
| CN105508340A (en) * | 2016-02-02 | 2016-04-20 | 马继刚 | Novel hydraulic servo system |
| CN109607463A (en) * | 2018-11-12 | 2019-04-12 | 中国直升机设计研究所 | A kind of pipeline reversing arrangement and commutation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3420474A1 (en) * | 1984-06-01 | 1985-12-05 | August 4322 Sprockhövel Altenhain | One- or multi-way valve with cylindrical plugs or the like for shutting off or opening a pipe conduit for liquids or gases |
| CN2423458Y (en) * | 2000-05-01 | 2001-03-14 | 唐永明 | Change-over valve with diaphragm |
| CN2610136Y (en) * | 2003-03-20 | 2004-04-07 | 梁法占 | Conical surface liquid distribution rotation valve |
| US20080265200A1 (en) * | 2007-04-25 | 2008-10-30 | Min-Hsieng Wang | Change valve for an air compressor |
| CN101680556A (en) * | 2007-02-02 | 2010-03-24 | 大陆汽车有限责任公司 | Combination valve |
-
2010
- 2010-06-23 CN CN 201010207455 patent/CN101865170B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3420474A1 (en) * | 1984-06-01 | 1985-12-05 | August 4322 Sprockhövel Altenhain | One- or multi-way valve with cylindrical plugs or the like for shutting off or opening a pipe conduit for liquids or gases |
| CN2423458Y (en) * | 2000-05-01 | 2001-03-14 | 唐永明 | Change-over valve with diaphragm |
| CN2610136Y (en) * | 2003-03-20 | 2004-04-07 | 梁法占 | Conical surface liquid distribution rotation valve |
| CN101680556A (en) * | 2007-02-02 | 2010-03-24 | 大陆汽车有限责任公司 | Combination valve |
| US20080265200A1 (en) * | 2007-04-25 | 2008-10-30 | Min-Hsieng Wang | Change valve for an air compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671328A (en) * | 2013-12-21 | 2014-03-26 | 浙江大学 | Automatic reversing rotary valve |
| CN105508340A (en) * | 2016-02-02 | 2016-04-20 | 马继刚 | Novel hydraulic servo system |
| CN109607463A (en) * | 2018-11-12 | 2019-04-12 | 中国直升机设计研究所 | A kind of pipeline reversing arrangement and commutation method |
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| Publication number | Publication date |
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| CN101865170B (en) | 2013-01-23 |
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